Tuesday, June 25, 2013

1306.5496 (Shi-Jie Yang et al.)

Dynamical revivals of the paired superfluidity and counterflow

Shi-Jie Yang, Pei Lu, Shiping Feng
The quantum dynamics of two-species bosons in an optical lattice is studied within the mean-field theory. The quantum coherence experiences periodical collapses and revivals, which depends on the relative strength of the inter-and intra-species interactions. The paired superfluidity and the counterflow superfluidity are identified and are verified by exact diagonaliztion in the two-site Hubbard model. We suggest a dynamical method of implementation and detection for the paired superfluid and the counterflow superfluidity in the optical lattices.
View original: http://arxiv.org/abs/1306.5496

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